Quick connector

Abstract

The utility model discloses a quick connector, which belongs to the field of medical instruments and comprises a connecting cylinder, a pressing channel is arranged on the outer wall of the connecting cylinder in a penetrating manner, and a cavity is arranged in the connecting cylinder; the pressing piece comprises a pressing arm and an elastic arm, the pressing arm is rotationally connected with the connecting cylinder and can rotate to an open position, and the pressing arm at the open position is separated from the cavity; one end of the elastic arm is connected with the pressing arm, the other end of the elastic arm is connected with the connecting cylinder, the elastic arm drives the pressing arm to move to a pressing position when not subjected to external force, and the pressing arm at the pressing position intrudes into the cavity. Through the arrangement, two external pipelines can be quickly and stably communicated through the male joint and the female joint.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and particularly relates to a quick connector. Background Art

[0002] Clinically, liposuction surgery is used to extract excess fat from the patient's body to improve the patient's body shape. The extracted fat can be used for refilling, but the extracted fat needs to be processed before refilling. The purpose of the processing is to separate the blood and swelling fluid in the fat. These blood and swelling fluid are not conducive to the survival of the fat. Currently, when processing the fat extracted from the patient's body, the devices used include a variety of containers. Different containers are used to store fat in different states. Different containers are directly connected through pipelines. The direct connection method of the pipeline is usually adhesive fixation or friction-based connection. The operation of connecting two sections of pipelines using these connection methods is relatively complicated and inconvenient to disassemble after use.

[0003] Therefore, a joint is designed that can quickly connect two sections of pipelines. This joint is specifically a quick joint. Utility Model Content

[0004] In order to overcome the problems mentioned in the background technology, the present invention adopts the following technical solutions:

[0005] A quick connector comprises: a connecting tube, an outer wall of which is provided with a clamping channel, and a cavity is provided inside the connecting tube; a clamping piece, which comprises a clamping arm and an elastic arm, the clamping arm is rotatably connected to the connecting tube and can be rotated to an open position, and the clamping arm in the open position is separated from the cavity; one end of the elastic arm is connected to the clamping arm, and the other end of the elastic arm is connected to the connecting tube, and when the elastic arm is not subjected to external force, the clamping arm is driven to move to a clamping position, and the clamping arm in the clamping position invades the cavity, and the connecting tube and the clamping piece can be combined into a female connector.

[0006] Furthermore, the cavity includes a first tube placement lumen and a second tube placement lumen, the first tube placement lumen and the second tube placement lumen being in communication, and the compression channel being provided on the outer wall of the first tube placement lumen. The first tube placement lumen is used to accommodate a male connector connected to an external tube, and the second tube placement lumen is used to accommodate an externally inserted tube. The second tube placement lumen and the externally inserted tube are plugged in in an interference fit manner, and the inner diameter of the second tube placement lumen is the same as the outer diameter of the external tube.

[0007] Furthermore, the first tube placement cavity is cylindrical, the second tube placement cavity is cylindrical, and the central axis of the first tube placement cavity coincides with the central axis of the second tube placement cavity to ensure that the external pipeline can be aligned when entering the cavity.

[0008] Furthermore, the inner diameter of the first tube placement lumen is greater than the inner diameter of the second tube placement lumen.

[0009] Furthermore, a limiting hole is provided between the first tube placement lumen and the second tube placement lumen, and a diameter of the limiting hole is smaller than an inner diameter of the first tube placement lumen and an inner diameter of the second tube placement lumen.

[0010] Furthermore, an elastic slot is provided on the outer wall of the connecting tube, and the elastic slot and the pressing arm are provided with a rotating member, and the rotating member can be engaged with the elastic slot and rotate around the central axis of the rotating member.

[0011] Furthermore, the central axis of the rotating part is perpendicular to the central axis of the first tubular cavity. When the clamping part rotates around the rotating part, the plane of the rotation trajectory of any point on the clamping part is parallel to the central axis of the first tubular cavity, so that the clamping arm can move in the clamping channel.

[0012] Furthermore, the end of the clamping arm facing away from the connecting tube is provided with an anti-slip portion, which is specifically a protrusion arranged in an array on the outer wall of the clamping arm. The rotating member is connected to the clamping arm through a connecting rod, and the anti-slip portion and the end of the clamping arm extending into the clamping channel are arranged on both sides of the connection between the connecting rod and the clamping arm, and the elastic arm and the anti-slip portion are arranged on the same side of the connection between the connecting rod and the clamping arm. Therefore, when the anti-slip portion is pressed, the end of the clamping arm extending into the clamping channel moves away from the first tube cavity and toward the open position.

[0013] Furthermore, the inner diameter of the first tubular cavity is not less than 6 mm.

[0014] Furthermore, the clamping arm does not separate from the clamping channel when in the open position.

[0015] Furthermore, one end of the second tube cavity away from the limiting hole is provided with a chamfer, so as to reduce the difficulty of inserting the external pipeline into the cavity.

[0016] Furthermore, the quick connector also includes a male connector, which includes a connecting part and an external part. The outer diameter of the connecting part is different from the inner diameter of the cavity. Specifically, the outer diameter of the connecting part is smaller than the inner diameter of the first tubing cavity, the outer diameter of the connecting part is not smaller than the inner diameter of the second tubing cavity, and the outer diameter of the external part is larger than the inner diameter of the cavity; a third tubing cavity is provided inside the connecting part, and when the connecting part is sleeved on the first tubing cavity, the third tubing cavity is coaxial with the first tubing cavity.

[0017] Furthermore, a sealing ring is provided around the outer wall of the connecting portion, and the sealing ring is elastic. The outer diameter of the sealing ring when not subject to external force is larger than the inner diameter of the cavity. When the connecting portion is sleeved inside the first tubing cavity, the sealing ring undergoes elastic deformation and presses tightly against the inner wall of the first tubing cavity.

[0018] Furthermore, a snap-fit ​​groove is provided on the outer wall of the connecting portion, and the clamping arm is inserted into the snap-fit ​​groove when it is in the clamping position; the snap-fit ​​groove is arranged around the central axis ring of the third tube cavity so that the clamping arm can be inserted into the snap-fit ​​groove when the male connector rotates, so that the male connector cannot be detached from the female connector.

[0019] Beneficial effects of the utility model:

[0020] By providing a cavity with a limiting hole, the external pipeline and the male connector connected to the external pipeline can be connected in the connecting tube; after one section of the pipeline is interference-fitted with the second tube cavity, a clamping piece with an elastic arm is provided, so that the male connector connected to the other section of the pipeline is limited in the first tube cavity by the clamping arm, and the clamping arm in the clamping position can be moved to the open position by simply pressing the anti-slip part, so that the male connector and the female connector can be quickly connected or separated. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0022] Figure 1 It is a schematic diagram of the overall structure of the female connector when the clamping arm is in the clamping position;

[0023] Figure 2 for Figure 1 Schematic diagram of the cross-section structure;

[0024] Figure 3 Schematic diagram of the overall structure of the female connector when the clamping arm is in the open position;

[0025] Figure 4 Schematic diagram of the overall structure of the pressing part;

[0026] Figure 5 Schematic diagram of the overall structure of the connecting tube;

[0027] Figure 6 This is a schematic diagram of the overall structure assembly of the utility model;

[0028] Figure 7 for Figure 6 Schematic diagram of the cross-section structure;

[0029] Figure 8 Schematic diagram of the overall structure of the male connector;

[0030] Figure 9 for Figure 8 Schematic diagram of the cross-section structure;

[0031] In the figure, 1. connecting tube; 11. pressing channel; 12. cavity; 121. first tube cavity; 122. second tube cavity; 13. limiting hole; 14. elastic card slot; 15. shielding member; 2. pressing member; 21. pressing arm; 211. rotating member; 212. anti-slip portion; 213. connecting rod; 22. elastic arm; 3. male connector; 31. connecting portion; 311. third tube cavity; 312. sealing ring; 313. card slot; 32. external portion; 321. fourth tube cavity. DETAILED DESCRIPTION

[0032] The following is a clear and complete description of the technical solutions in the embodiments of the present invention through specific embodiments. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Those skilled in the art can easily understand other advantages and functions of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation methods. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] A quick connector, such as Figure 1-9 As shown, it includes: a connecting tube 1, a clamping channel 11 is penetrated on the outer wall of which, a cavity 12 is provided inside the connecting tube 1; a clamping member 2, which includes a clamping arm 21 and an elastic arm 22, the clamping arm 21 is rotatably connected to the connecting tube 1 and can be rotated to an open position, and the clamping arm 21 in the open position is separated from the cavity 12; one end of the elastic arm 22 is connected to the clamping arm 21, and the other end of the elastic arm 22 is connected to the connecting tube 1, and the elastic arm 22 drives the clamping arm 21 to move to a clamping position when not subjected to external force, and the clamping arm 21 in the clamping position invades the cavity 12, the connecting tube 1 and the clamping member 2 can be combined into a female connector, and the female connector and the male connector 3 are combined into a quick connector.

[0034] In some embodiments of the present application, Figure 1-9As shown, the quick connector also includes a male connector 3, which includes a connecting portion 31 and an external portion 32. The outer diameter of the connecting portion 31 is different from the inner diameter of the cavity 12. Specifically, the outer diameter of the connecting portion 31 is smaller than the inner diameter of the first tubing cavity 121, the outer diameter of the connecting portion 31 is not smaller than the inner diameter of the second tubing cavity 122, and the outer diameter of the external portion 32 is larger than the inner diameter of the cavity 12; a third tubing cavity 311 is provided inside the connecting portion 31, and when the connecting portion 31 is sleeved on the first tubing cavity 121, the third tubing cavity 311 is coaxial with the first tubing cavity 121, and a fourth tubing cavity 321 is provided inside the external portion 32, and the fourth tubing cavity 321 is used to connect an external pipeline, and an external pipeline inserted into the fourth tubing cavity 321 cannot enter the third tubing cavity 311.

[0035] In some embodiments of the present application, Figure 1-9 As shown, a sealing ring 312 is arranged around the outer wall of the connecting portion 31. The sealing ring 312 is elastic. The outer diameter of the sealing ring 312 is larger than the inner diameter of the cavity 12 when it is not subjected to external force. When the connecting portion 31 is sleeved inside the first tubing cavity 121, the sealing ring 312 undergoes elastic deformation and presses tightly against the inner wall of the first tubing cavity 121.

[0036] In some embodiments of the present application, Figure 1-9 As shown, a snap-fit ​​groove 313 is also provided on the outer wall of the connecting portion 31, and the clamping arm 21 is inserted into the snap-fit ​​groove 313 when it is in the clamping position; the snap-fit ​​groove 313 is arranged around the central axis ring of the third tube cavity 311, so that the clamping arm 21 can be inserted into the snap-fit ​​groove 313 when the male connector 3 rotates, so that the male connector 3 cannot be detached from the female connector.

[0037] In some embodiments of the present application, Figure 1-9 As shown, the cavity 12 includes a first tube placement cavity 121 and a second tube placement cavity 122. The first tube placement cavity 121 and the second tube placement cavity 122 are connected, and the compression channel 11 is provided on the outer wall of the first tube placement cavity 121. The first tube placement cavity 121 is used to accommodate a male connector 3 connected to an external pipeline and can compress the inserted male connector 3 through the compression arm 21. The second tube placement cavity 122 is used to accommodate an externally inserted pipeline. The male connector 3 inserted into the first tube placement cavity 121 and the pipeline inserted into the second tube placement cavity 122 are inserted in opposite directions. The externally inserted pipeline or male connector 3 cannot pass through the limiting hole 13.

[0038] In some embodiments of the present application, Figure 1-9 As shown, the first tube cavity 121 is cylindrical, and the second tube cavity 122 is cylindrical. The central axis of the first tube cavity 121 coincides with the central axis of the second tube cavity 122 to ensure that the external pipeline and the male connector 3 can be aligned when entering the cavity 12.

[0039] In some embodiments of the present application, Figure 1-9As shown, the inner diameter of the first tube cavity 121 is larger than the inner diameter of the second tube cavity 122 and the outer diameter of the connecting portion 31. The inner diameter of the second tube cavity 122 is fixed, and the second tube cavity 122 is plugged and assembled with the external tube. When in use, the male connector 3 connected to the external tube is inserted into the first tube cavity 121 and tightened by the clamping arm 21, which effectively simplifies the operation steps.

[0040] In some embodiments of the present application, Figure 1-9 As shown, a limiting hole 13 is provided between the first tube placement cavity 121 and the second tube placement cavity 122 , and the diameter of the limiting hole 13 is smaller than the inner diameter of the first tube placement cavity 121 and the inner diameter of the second tube placement cavity 122 .

[0041] In some embodiments of the present application, Figure 1-9 As shown, the outer wall of the connecting tube 1 is provided with an elastic groove 14. The elastic groove 14 and the pressing arm 21 are provided with a rotating member 211. The rotating member 211 is cylindrical or cylindrical with a section. The rotating member 211 can be engaged with the elastic groove 14 and rotate around the central axis of the rotating member 211. The connecting tube 1 is provided with a shielding member 15. The shielding member 15 is provided on both sides of the elastic groove 14 along the central axis of the rotating member 211. When the rotating member 211 reciprocates along its own central axis, it is constrained by the shielding member 15, so that the rotating member 211 cannot slip out of the two ends of the elastic groove 14.

[0042] In some embodiments of the present application, Figure 1-9 As shown, the central axis of the rotating member 211 is perpendicular to the central axis of the first tubular cavity 121. When the clamping member 2 rotates around the rotating member 211, the plane of the rotation trajectory of any point on the clamping member 2 is parallel to the central axis of the first tubular cavity 121, so that the clamping arm 21 can move in the clamping channel 11.

[0043] In some embodiments of the present application, Figure 1-9 As shown, the end of the clamping arm 21 facing away from the connecting tube 1 is provided with an anti-slip portion 212 for increasing frictional resistance when pressed by a user. The anti-slip portion 212 is specifically a protrusion arranged in an array on the outer wall of the clamping arm 21. The rotating member 211 is connected to the clamping arm 21 via a connecting rod 213. The anti-slip portion 212 and the end of the clamping arm 21 extending into the clamping channel 11 are arranged on both sides of the connection between the connecting rod 213 and the clamping arm 21. The elastic arm 22 and the anti-slip portion 212 are arranged on the same side of the connection between the connecting rod 213 and the clamping arm 21. Therefore, when the anti-slip portion 212 is pressed, the end of the clamping arm 21 extending into the clamping channel 11 moves away from the first tube cavity 121 and toward an open position. The inner diameter of the first tube cavity 121 is not less than 6 mm to facilitate insertion of the male connector 3.

[0044] In some embodiments of the present application, Figure 1-9As shown, the clamping arm 21 does not separate from the clamping channel 11 when in the open position. The clamping arm 21 rotates around the rotating member 211, and its motion trajectory is an arc. Therefore, when the clamping arm 21 is in the open position, it squeezes the clamping channel 11 to prevent the clamping arm 21 from separating from the clamping channel 11. After separating from the clamping channel 11, the clamping arm 21 cannot be reset to the clamping position or the open position by rotating around the rotating member 211, which is not conducive to simplifying the operation of connecting the external pipeline to the male connector 3. The ends of the first tube placement cavity 121 and the second tube placement cavity 122 facing away from the limiting hole 13 are both chamfered to reduce the difficulty of inserting the external pipeline and the male connector 3 into the cavity 12.

[0045] In some embodiments of the present application, the connecting tube 1 and the pressing piece 2 are made of opaque PVC plastic or PC plastic, or the connecting tube 1 and the pressing piece 2 are made of transparent PVC plastic or PC plastic. This setting makes it easy for the user to intuitively see the movement trajectory of the liquid fat in the pipeline.

[0046] During use, an external pipeline is interference fit with the second tube cavity 122, and the anti-slip part 212 is pressed to disengage the clamping arm 21 from the first tube cavity 121. After the male connector 3 connected to another external pipeline is inserted into the first tube cavity 121, the anti-slip part 212 is stopped from being pressed. At this time, the clamping arm 21 compresses the clamping groove 313 and positions the pipeline inserted into the first tube cavity 121. After the operation is completed, the anti-slip part 212 is pressed again and the pipeline inserted into the first tube cavity 121 can be pulled out.

Claims

1. A quick connector, characterized in that: include: A connecting tube, the outer wall of which is provided with a compression channel, and the interior of the connecting tube is provided with a cavity; A clamping piece, which includes a clamping arm and an elastic arm, wherein the clamping arm is rotatably connected to the connecting tube and can be rotated to an open position, and the clamping arm in the open position is separated from the cavity; one end of the elastic arm is connected to the clamping arm, and the other end of the elastic arm is connected to the connecting tube, and when the elastic arm is not subjected to external force, the clamping arm is driven to move to a clamping position, and the clamping arm in the clamping position invades the cavity, and the connecting tube and the clamping piece can be combined into a female joint.

2. A quick connector according to claim 1, characterized in that: The cavity includes a first tube placement cavity and a second tube placement cavity, the first tube placement cavity is communicated with the second tube placement cavity, and the compression channel is arranged on the outer wall of the first tube placement cavity.

3. A quick connector according to claim 2, characterized in that: The first tube placement lumen is cylindrical, the second tube placement lumen is cylindrical, and the central axis of the first tube placement lumen coincides with the central axis of the second tube placement lumen.

4. A quick connector according to claim 3, characterized in that: The inner diameter of the first catheter placement lumen is greater than the inner diameter of the second catheter placement lumen.

5. A quick connector according to claim 2, characterized in that: A limiting hole is arranged between the first tube placement cavity and the second tube placement cavity, and a diameter of the limiting hole is smaller than an inner diameter of the first tube placement cavity and an inner diameter of the second tube placement cavity.

6. A quick connector according to claim 3, characterized in that: An elastic slot is arranged on the outer wall of the connecting tube, and the elastic slot and the clamping arm are provided with a rotating member, and the rotating member can be clamped in the elastic slot and rotate around the central axis of the rotating member.

7. A quick connector according to claim 6, characterized in that: The central axis of the rotating member is perpendicular to the central axis of the first tube placement cavity.

8. A quick connector according to claim 1, characterized in that: The quick connector also includes a male connector, which includes a connecting portion and an external portion. The outer diameter of the connecting portion is different from the inner diameter of the cavity, and the outer diameter of the external portion is greater than the inner diameter of the cavity.

9. A quick connector according to claim 8, characterized in that: A sealing ring is arranged around the outer wall of the connecting portion, and the sealing ring is elastic.

10. A quick connector according to claim 9, characterized in that: The outer wall of the connecting portion is also provided with a clamping groove, and the clamping arm is inserted into the clamping groove when the clamping arm is in the clamping position.

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